U.S. to Further Raise Airline Security, Official Says

Receive the latest politics updates in your inbox

ARLINGTON, VA - MARCH 27: Transportation Security officers (L-R) Lloyd Lewis, and Paul Smith demonstrate Transportation Security Administration's (TSA) Systems Integration Facility, a new explosives screening system which DHS planned to deploy to airports around the country, during a press event by Homeland Security Secretary Janet Napolitano as she unveiled the DHS Efficiency Review Initiative March 27, 2009 at Ronald Reagan National Airport in Arlington, Virginia. Napolitano rolled out her plans on cutting unnecessary spending within her department hoping to save hundreds of millions of dollars. (Photo by Alex Wong/Getty Images)

Updated at 1:15 PM PDT on Thursday, Jan 14, 2010

WASHINGTON - The Department of Homeland Security is further increasing aviation security in response to intelligence indicating Islamist terrorists were planning another attack on the United States.

The new regulations — which are to be announced later Thursday — were not described in detail, but a senior U.S. official told NBC News on condition of anonymity that they would include further in-flight restrictions in passengers’ movement, more random pre-flight screening of passengers and an increase in the number of federal air marshals on flights.

“In view of the event of Christmas Day we must remain vigilant about the continued threat we face from al-Qa’ida,” Homeland Security Secretary Janet Napolitano said in a statement after NBC Nws disclosed the new measures. “We are taking an additional set of aviation security precautions to protect the American people.”

The tightened security comes after U.S. officials said new intelligence data suggested that the al-Qaida offshoot in the Arabian country of Yemen was planning another attack on the United States. A British-based Nigerian man affiliated with the group is believed to have been responsible for the aborted attempt to bomb a jetliner over Detroit on Christmas Day.

The new intelligence was first reported Wednesday by NBC News, which quoted three U.S. officials as saying the intelligence was considered credible. The officials would not describe the information or say whether it indicated a specific target or date.

“No one believes al-Qaida in the Arabian Peninsula has stopped planning for attacks on the United States,” one of the officials said. “No one believes that the events of December 25 are the last we will see of these guys.”